animalclassprotectedinheritance.cpp

来自「C++ sample code, for the book: C++ blac」· C++ 代码 · 共 37 行

#include <iostream>
using namespace std;

class animal 
{
public:
    void breathe();
    void eat();
    void sleep();
};

class elephant : protected animal 
{
public:
    void trumpet();
    void stampede();
    void breathe();
};

void animal::eat(){cout << "Eating...\n";}
void animal::sleep(){cout << "Sleeping...\n";}
void animal::breathe(){cout << "Breathing...\n";}

void elephant::trumpet(){cout << "Trumpeting...\n";}
void elephant::stampede(){cout << "Stampeding...\n";}
void elephant::breathe(){animal::breathe();}

int main()
{
    elephant jumbo;

    jumbo.breathe();
    jumbo.trumpet();
    jumbo.stampede();

    return 0;
}